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J. FOLLMER & J. WLAUOPSKY.

SWING.

` APPLICATION FILED MAR. 2, 1908. 902,486, Patented 0G13. 27, 1908.

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SWING.

APPLIOATION FILED MAR. 2, 190e.

Patented 0015.211908.

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'UNITED STATES PATENT OFFICE'.

JOSEPH FOLLMER AND JOHN WLACOFSKY, OF DENVER, COLORADO.

SWING.

To all whom it may concern: Y

Be it known that we, JOSEPH FOLLMER and JOHN VVLAOOFSKY, the said JOSEPH FOLLMER a citizen of the United States and the said JOHN VLAoorsKY a subject of Austria-Hungary, both residing at the city and county of Denver and State of Colorado, have invented certain new and useful Improvements in Swings; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

Our invention relates to improvements in swings adapted for use either in parks or other locations where amusement apparatus 1s desired.

Our improved construction as illustrated in the drawing is provided with a canoeshaped body portion having seats located on opposite sides of the center, each seat being adapted to accommodate one or more persons to sit facing each other. This body portion is suspended to oscillate, suspension rods being suitably attached above and pivotally connected with the body of the swing on opposite sides of the latter, these points of connection being also located on opposite sides of a vertical plane passed through the points of suspension and cutting the swing body transversely, there being two points of suspension, one for each pair of suspension rods, the said two suspension points being located on opposite sides of a plane cutting the body of the swing longitudinally.

Suspended from a point directly above the center of the swing, is a pull cord or rope adapted for use by the persons in the body of the swing, for imparting the oscillatory movement thereto. It is evident that there may be two of these pull rods for each swing. If only one is employed, it may be alternately used by persons sitting in the two seats.

Another feature of our construction, consists in providing the bottom of the swing body with a friction surface extending longitudinally thereof, and equipping the frame work with a brake bar which may be adjusted to engage said surface for the purpose of stopping the swing and holding it sta- Specicaton of Letters Patent.

Application filed March 2, 1908.

Patented Oct. 27', 1908.

Serial N o. 418,765.

tionary for the convenience of persons getting in and out.

Having briefly outlined our improved construction, we will proceed to describe the same in detail reference being made to the accompanying drawing in which is illustrated an embodiment thereof.

In this drawing, Figure 1 is an elevation illustrating two of our improved swings mounted upon a suitable frame work, the body of one of the swings being shown in cross section. Fig. 2 is a section cutting the frame work between the two swings one of which is shown in side elevation. Fig. 3 is a section taken through the extremity of the brake beam provided with a screw shaft for adjusting the said beam, the parts being shown on a larger scale. Fig. t is an enlarged sectional view taken on line 1-4 of Fig. 1 showing the arrangement of the brake beam and the stops which keep said beam in proper alinement.

The same reference characters indicate the same parts in all the views.

Let the numeral 5 designate a suitable platform provided with a step 6 at its opposite ends to assist persons in ascending and descending. To this platform are secured vertically disposed posts 7 located on opposite sides of the platform. To the upper portion of each of these vertical posts, is secured the upper extremity of two inclined beams 8, one being located on each side. The upper ends of these beams are bolted to the posts 7 as shown at 9 while their lower extremities are suiiiciently separated to brace the frame work and form a stable structure. The posts 7 extend somewhat above the inclined beams 8, and are connected at the top by a horizontal beam 10, to the opposite sides of which are attached strengthening plates 12. These plates are secured to the beam 10 by bolts 13 to which are applied nuts 14.

Let the numeral 15 designate the body of each swing which as shown in the drawing is canoe-shaped, its bottom being curved to allow it to swing clear of the brake beam 16 when oscillating in both directions. This beam is pivoted at one extremity as shown at 17 its opposite extremity being provided with a nut 18 in which is threaded a screw shaft 19 provided with an operating handle 20. This screw shaft is journaled in the platform as shown at 21 while the nut is mounted in the brake beam, the latter being of the seats to operate the swing though if 6 5 allowed a limited movement on the nut which is permitted to maintain a vertical position while the brake beam moves in an arc struck from the center of the pivot 17, the opening 22 in which the nut is located being shaped wit-h this end in view. rlhe pivoted ex tremity of the brake beam may be so located that when its opposite extremity is adjusted to engage a friction shoe 23 with which each swing is provided, the upper surface of the beam lies in a horizontal plane engaging the friction shoe 23 of a number of swings arranged side by side (see Fig. 1) of the drawing. Each swing body 15 is suspended by four rods 24, two being located on each side. rlhe two rods on each side are pivotally connected with the swing body at their lower extremities as shown at 25, their upper extremities being provided with eyes 26 through which passes a relatively large ring 27, the lat-ter in turn passing through the eye 28 of a vertically disposed bolt 29 passing through the transverse beam 10 and held in place by a nut 30 engaging a washer 31. The pivotal points 25 for the lower extremities of each pair of suspension rods, are located on opposite sides of both the longi-v tudinal and transverse centers of the swing while the upper extremities of each pair of rods are in contact with each other being both connected with the same ring 2? as heretofore explained. Each pair of rods 24 is located in a vertical plane extending parallel with the plane cutting the longitudinal center of the swing.

Connected with an eye bolt 31 attached to the beam 10, is a pull device preferably flexible as rope. The eye-bolt 31 is attached to the beam 10 at a point directly above the center of the swing body, that is to say directly above the point where two planes passing through the longitudinal and transverse centers of the swing, intersect. This pull rope therefore hangs downwardly between the seats 33 with which the body of the swing is provided, these seats being arranged on opposite sides of the transverse center of the swing and so that persons sitting in them will face each other. The pull rope is so arranged that it may be used by persons sitting in either of the seats For instance referring` to Fig. 2, a person sitting` on the seat 33 farther to the left, by pulling on the rope P2, will cause the body of the swing to move toward the right. He then drops the rope and the person sitting on the other seat grasps it and pulls causing the swing to move in the opposite direction.

1in this manner the persons sitting on the two seats may gradually increase the oscillating movement of the swing to any extent desired. 1twill of course be rthoroughly practicable for a single person sitting in one two persons are sitting on the opposite seats facing each other, the work of propelling the swing may be more effectually accomplished, that is to say a given degree of oscillating movement may be imparted to the swing more quickly by two persons than where it is operated by one person alone.

lV hen it is desired to stop the swing or swings, the brake beam 16 which is normally in the position shown in Figs. 1 and 2, may,

be raised to the dotted line position (see Fig. 1) whereby all of the swings between its two extremities, may be caused to stop, since the friction shoe of each swing is brought in contact with the friction face of the brake beam.

1n order to hold the brake beam securely in place against lateral movement due to the engagement of the friction faces 23 therewith, the post 7 remote from the pivotal extremity of the brake beam, is provided with stops 34 adapted to engage the screw shaft extremity of the brake beam on 0pposite sides. These stops 34 are so located as not to interfere with the free vertical movement of the brake beam for purposes of adjustment.

Having thus described our invention, what we claim is:

1. The combination with a frame work, of a swing composed of a body part mounted to oscillate, a brake beam, a screw shaft journaled in the frame work, a nutinounted in the brake beam and engaged by the screw shaft, the nut being loose to permit the latter an oscillating movement while the nut retains its position to harmonize with the position of the screw shaft, substantially as described.

2. The combination with a frame work, of a swing composed of a body part mounted to oscillate, a brake beam extending transversely of the body of the swing and occupying a position below the same, a screw shaft journaled in the frame work, a nut mounted in the brake beam and engaged by the screw shaft, the nut being loose in the beam to permit the latter an oscillating movement while the nut retains its position to harmonize with the position of the screw shaft, substantially as described.

3. 1n a swing, the combination with a suitable frame work, of a canoe-shaped body part, a pair of suspension rods on each side pivotally connected at their lower extremities with the body of the swing at suitably separated points, 'their upper extremity being suitably connected with the frame work at a common point approximately, the pair of suspension rods on opposite sides being located in parallel planes, a pull rope connected with the frame work at a point directly above the center of the swing, a brake beam occupying a position beloW the swing, a screw shaft journaled in the frame Work, a nut mounted on the brake beam and engaged by the screw shaft, the nut being loose in the beam to permit the latter an oscillating movement While the nut retains its position to harmonize with the position of the screw shaft, substantially as described.

In testimony whereof We afIiX our signatures 1n presence of two Witnesses.

JOSEPH FOLLMER. JOHN WLACOFSKY.

Witnesses:

DENA NELSON, A. J. OBRIEN. 

